ASTER Processing

Contents: Description, Procedure, Functions Used, Related Functions Description This procedure is designed to help the user process an ASTER VIS/SWIR/TIR data and run it through "standard processing", correcting for various noises and producing an emissivity array. For a brief description of the standard processing steps, including when and how they should be used please see the paper: Cooper, F. J., B. A. Adams, C. S. Edwards, and K. V. Hodges (2012), Large normal-sense displacement on the South Tibetan fault system in the eastern Himalaya, Geology, doi: 10.1130/g33318.1. Procedure Due to the format HDF4 that standard ASTER products from archives (e.g. glovis.usgs.gov) the data must be read into davinci specially using the load_aster() function which relies on GDAL to do the data translation. By default we are going to process ASTER L1B data that contain all VIS/SWIR/TIR bands. Other data types can be processed (e.g. 09, 05 etc.) but the details for these different products are not included in this discussion. dv>a = load_aster("AST_L1B_00303202005145311_20121120130103_24164.hdf") struct, 7 elements anc: struct, 60 elements ul: 2x1x1 array of double, bsq format [16 bytes] ur: 2x1x1 array of double, bsq format [16 bytes] ll: 2x1x1 array of double, bsq format [16 bytes] lr: 2x1x1 array of double, bsq format [16 bytes] bandlist: Text Buffer with 15 lines of text data: struct, 4 elements vnir: 4980x4200x3 array of float, bsq format [250,992,000 bytes] vnir3B: 4980x4600x1 array of float, bsq format [91,632,000 bytes] swir: 2490x2100x6 array of float, bsq format [125,496,000 bytes] ir: 830x700x5 array of float, bsq format [11,620,000 bytes] Continue adding more sections that correspond to clean up (aster_deplaid, rrmnoise_pca, thresholding, NDVI, etc.)

DavinciWiki Mini-Nav Bar Contents Functions Function Categories Common Procedures Glossary Download Davinci Change Log News Mailing List Contact Developers davinci-dev [AT] mars.asu.edu All other topics See navigation on the left Functions Used add the functions used here! load_aster deplaid_aster thm.deplaid rrmnoise_pca Related Procedures add related functions here Add Two Arrays Together